Boiler-cleaner.



Vnu. 045,070. l Patented Mar. 20,1900. .1. T. :mams a. .1. la. SMITH.

BUILEB CLEANER.

(Application filed Aug. 14, 1899.)

(No Modal.)

NVENTOHS No. 645,870. Patented Mar. 2o, lado. J. T. Nonms a J. SMITH.

BOILEB CLEANER. (A pplictinn led Aug. 14, 1899.)

. 2 Sheets-Sheet 2.

(N o M o d al ter referred to.

45.- Heretofore cleaner devices or sediment vTo @ZZ whom `i may concern.-

4steam-boilers and other like power-genera tors,

. ()lur i nvention-consists in thenovel arrange? NITED JOHN T. Nonnis AND JAMES n. SMITH, or RATON, TERRITORY or NEW MEX-ICO.

eolica-CLEANER.

srncztrrcArroN forming part of Letters meent No. 645,670, aerea Maren 2o, 1eoo.

' .imitation nea August 14, 1899.

Be it knownthat We, JOHN T. NORRIs and JAMES R. SMITH, residing at Raton, in the county of Colfax and Territory of New Mexico, have invented anew and Improved Cleaner or Dredge for Boilers, of which the following is a specification.

This invention has for its purpose to pro- 'vide a simple, economically-made, and easilyapplied means for cleaning out or dredgingI whereby to quickly remove sediment therefrom.

ment and peculiar combination of parts, as will hereinafter be described in detail-,andspeL ciflcally pointed out in the appended claims, reference being had to the accompanying drawings. in which Figure 1 illustrates our invention as applied for use in a horizontal or locomotive boiler. Fig. 2 is a horizontal section of the same on the line 2 2 of Fig. 1. Fig. '3 illustrates the manner of `applying our invention to a vertical boiler. Fig. 4 is a horizontal section of the same on the line et L.i of Fig. 3. Fig. 5 isv a longitudinal section of the ordinary tubular horizontal boiler, illustrating another Way in. which our invention is applied. Fig. 5 is a transverse section of the same. Fig. 6 is an inverted plan vievv of our appliance as arranged for a large-sized boiler. Fig. 7 is a similar view of the same constructed for use in boilers of an extremelydarge area. Fig. 8 is a section of the receiver end of one of the dredge-pipes. Fig. -9 is an end view of the same. Fig. 10 is a cross-section thereof. Fig.- 11 is a view of the receiver end of one ofthe drain-pipes having a modified arrangement of suction-inlets; and Fig. l2 is a horizontal section of the receiver end thereof, taken on the 4 lineactof Fig. 11. Fig. i8 illustratesa modi- .ied arrangement of ourinvention hereinafblowouts for boilers have been provided either in the nature of perforated pipes located Within the boiler at the bottom or both at the bottom and at the normal water-line and which have been 'connected with a sediment-collecting tank and with the feed-water serial No. 727,120. (Na more.)

pipe and so yarranged that the water is caused to circulate through the tankand the sedi# mentor scum during the circulation of the water allowed to settle within the sedimenttank. Perforated pipes located outside the bottom of the boiler have also heretofore been provided, which' have been tapped withthe bottom of the sediment-collecting space of the boiler and provided with blow-ods for the discharge of the sediment or dirtyater accumulation.

Devices constructed on the lines above noted have in practical application been open to objection and found not to produce all of the results desired, for the reason their construction has been costly, as a special arrangement of parts is usually required for differ ent types of .boilers,and particularly those operating as a combined feed-water and purifying means have been found to frequently clog up on account of the variable circulation of the Water Within the boiler and have thereby become either partly pr entirely inoperative. t g

Our invention seeks -to provide a simplilied means capable of being (Without any material changing of structure) applied to almost any type of boiler or power generator and which will effectively serve to quickly clean out the sediment collected' in the bottom of the boiler and surrounding water-legs, said invention comprehending, among other features, a novel correlation of parts, whereby a uniform oiftake of the dirty Water and: sediment is produced Without danger of the pipes clogging andy the boiler-cleaning portion thereby effected in a positive and rapid manner. l

Referring now to the accompanying drawings, and particularly to Figs. l to 4, inclusive, it will be noticed our dredger or cleanout devices in their simplest form (being that especially adapted for a vertical boiler, as in Figs. l and 2) consist of a pair of semicircular horizontally-disposed Vpipe-sections la l, which at one end join with a coupling member, ywith which a blow-off pipe-section is connected that extends outside ofthe boiler andis joined to a union-coupling 3a, to which the blow-off valve 4 is also secured. Theunder side 'of each pipe-section l? has perfora- 1 in Fg.l0, or they may be in the nature of elongated slits, as shown in Fig.'11,'and when vro tions 2, which may be'ether round, as shown thus formed the edges thereof are beveled in the directionof the flow of the fluid, as indi.

cated by 2, to prevent danger' of said 'slits becoming clogged. g

One of the essential features of our invention-lies in the separation of the .two pipe. members la, their ends beingin-practice held in a close relation to each other, but separated and formed with openings, whereby to create a compound offtake current.` Thism-auner of drawing o-the water in the pipes' 'not alone aiords a' quick method ofcleaning the boiler ofi its contents, but also elects a more uniform circulationof the water, as will presently more fully appear, and by reason of the extreme opposing ends being open an induced flow into the rear'end of the pipes is obtained, which in passing from the entrant ends of the said pipes to their exit ends causes,

as it were, an induction force through the.

several apertures of the pipes, increasing progressively toward the exit ends of said pipes, which tends to create a quick and uniform otake and at the same time serves as a means for automatically cleaning the pipeinlets, as the induced current in the said inlets is sucientl y strong to prevent lodgment of any sediment within the said openings.

To increase the injection force of the fluid through the pipes and also to prevent lodgment of scum, sediment, or solids of any kind against the entrant end of the said pipes l, the said ends 1" are made tapering, they being also enlarged transversely in one direction, and said ends are closed except at their-'diametrically-opposite points, where they have small inlets 6, gradually increasing toward.

the pipe-body` proper, said inlets being sepan rated by the abutting endsof .the cone portion of the pipe and al solid wedge-like memberf, as clearly shown in'liigs. 8 and 11.

By forming .the end of the pipe in the man ner shown and above described it is obvious the point or tapered edgewiil serve as a wedge to separate any solid substance or scum bulk that. may be drawn against it, thereby not only preventing the clogging at the said ends, but also leaving a small ripeninga clear for the properrow 'of the fluid therein, said openin'g converging inwardly, whereby to rproduce a jet-stream into the end of the pipe, which, gradually becoming augmented by the streams drawn' in through the inlets at the bottom of the pipe and which successively increasein their induction force,creates thereby Y 'a circulation and' odtake'liow impossible to 6o'.

obtain by the ordinary arrangementof perfrated blowout pipes.

So asj-described'the manner in which.

Y our'fimpifovement voperates is as follows: Usu- @entgegenwirken 'nre egregiamente.

alliierten belj'rs. have b'eii r'ed .externally oir internally. for twelve or twenty-fourhonrs,l

mere 'or less, as the. case may be, the: ire .is

natural lheat within the boiler then begins to cease vand the sediment contained therein commences to settle toward' the bottom of the boiler, and in avery short time-say two hours-.the bulk of ithas become deposited..

on such bottom. vAt the end of the settling time the blow-QE 4, which is in the nature of an-ordinary globe-valve`, is open, and atl this time there is still a pressure of steam Within.`

the boiler, say, of -forty pounds or more. The

,culat'ion thereof, the same entering the pipes 1a and, as before stated, takingQout with it "all Sediment that has settled on thebottem of the boiler, vthereby overcoming danger of the -boiler shell becoming burned or possibly blown up, such as is likely to occur when the said sediment has been permitted to thicken vand lodge on the bottom and sides of the shell.

It is obvious our improved cleaner' or dredger device Vinvolves a simple arrangement of parts capable Aof being used on `almost any kindof boiler without materially changing the rela-tion thereof. For instance, in lom comotive-boilers the two pipe'sections la are disposed inthe waterleg or chamber that sur- `pressure of the water will cause a perfect cir-Y rounds the firebox, as shown in Figs. 3 and 4, so as to clear that part of theY boiler, while asingle pipe-section lis extended over the bottom of thehorizontal part of the boiler and connected with the double pipe-section 1S' by.

a vertical joint 3. In this form the blow-o valve 4 is connected, through the mediurnot the union-coupling 3, with the single section f y l". When our invention is used with the ordinary tubular boiler horizontal, as shown in IOC Figs. 5 and 5a, we employe plurality of pipesections 1 l, extending lengthwise of the boiler, over its bottom,`as shown in Fig.- 5, the valve 4. connecting with the coupling 4, to which the union-'coupling member 8 connects and which supportsthe blow-0E valve 4. In this form and, infact, in alltypes of boilers we use a plurality of pipes lwhich in smallsized boilers isjusually two, coupled up at one' end, as shown in Fig. 6, and for larger-sized boilers three or more-pipe-sections l are used, having the one end coupled up, as shown in Fig. 7. ln all cases, however, the outer or open ends of the pipe-sections lareconstrncted alike and arranged injuxtaposition, so as to create a plurality of clearly-defined outiewing streams 0l. considerableorce, whereby to not only quickly clean the boiler, but also auto matically, as it were, keep the apertures of the pipe-sections la cleared to positively overcome all danger of their choking up, -By

keeping the pipe-orifices cleared ont at all times it is manifest we can utilizethe stearn-` pressure 'remaining in the boiler after the fire has been cut olf and secure a complete clearing outoffthe boiler before the said .pressure shalllhave byfexjpansion become 'enhausted. l' .l

In Fig, awe have show-n` a slight modiea tion offonrinvention. In' this term the main bri takeofpipeie/sheitnwith taps e, having ige laterals b, the inlet ends of which are constructed in the same manner as the inlet ends of the pipes 2. This latter arrangement of our invention is intended for use at such places Where it would be diiiicult to use the straight dredge-pipes alone.

Having thus described our invention, what We claim, and desire to secure by Letters Patent,` is- 1. A boiler-cleaner, comprising a plurality of perforated pipes, said pipes having one end made tapering, and the said tapering end formed with a plurality of inlet-openings gradually increasing inwardly and merging with the pipe, said pipes having inductioninlets from the tapering end to their exit end, the exit ends of said pipes having a unioncoupling, and a blow-out held externally of the boiler connection4 with the said coupling as set forth.

2. A boiler-cleaner comprising two perforated pipes joined at one end to the common' union-pipe, the free ends of the pipes extending in opposite directions about the fire-box, their extremities facing each other, said extremities having a tapering edge and inlets; and a perforated pipe-section connected with the union-pipe and extended into the sediment-inlets of the horizontal part of the boiler, the extremities of said pipe having tapering apertures, and a blow-o external of the boiler connected with one of the perforated pipesections.

3. A boiler-cleaner as described, comprising a plurality of pipes joinedat one end to a common coupling member; abloW-off connected with said member, each pipe havinga series of inlets, their edges tapering in the direction of the Water ont-iiow, the extremities of said pipes being made Wedge-shaped and having a pair of inlets 6, convergingly disposed inwardly with increasing diameters and merging with the pipe, all being arran ged substantially as shown and described.

JOHN T. NORRIS." JAMES R. SMITH. 

